I feel very confident that the NASCAR weather forecast at New Hampshire Motor Speedway for today’s Sprint Cup race is dry, but I’ve added a chance of an isolated storm.

Overall the weather forecast remains unchanged but with warmer temperatures and more moisture in the air a quick moving isolated shower or storm is possible, especially after at or after 2:00 p.m. EDT.

I am sticking with the mostly dry weather forecast for this afternoon, but isolated storms could pop-up on radar, and while the odds are very low (less than 10% in my opinion) one could come close or hit the track. For the latest updates follow me on Twitter @NASCAR_WXMAN and like me on Facebook.

The weather forecast for the NASCAR Nationwide and Sprint Cup series at New Hampshire Motor Speedway continues to improve. It looks like little to no chance of rain for today or Sunday.

Forecast for today will feature clouds, and some sunshine. It will be comfortable with afternoon high temperatures in the low to mid 80s. Winds will be generally light and variable for most of the day.

Sunday is warmer and more humid with afternoon temperatures in the upper 80s. It will remain dry and partly sunny with light winds.

The weather forecast for New Hampshire Motor Speedway this weekend is mostly dry, but there are a few chances of showers and thunderstorms.

An area of high pressure will try to build in over the northeast and New England. It will battle with a stalled cold front of the New England coast. This stalled cold front will have one weak storm system move northward along it that could bring a chance of a shower later this afternoon, and possibly again Saturday morning.

The threat of rain is not very high and nothing to worry about this weekend. I honestly don’t expect much if any delays from rain but if I had to give a probability of delays this weekend I’d say it was around 10 to 20 percent.

Like always I will keep an eye on the forecast and radar as we go through the weekend. For the latest updates follow me on Twitter @NASCAR_WXMAN and like me on Facebook.

Loudon, NH

SAT
Sept. 24

SUN
Sept. 25

Poss. showers & fog in the morning, cloudy sct’d afternoon showers.

Morning Fog, Clouds, peeks of sun. Isolated drizzle

High: 71

High: 82Low: 61

FORECAST UPDATE SATURDAY 3 AM EDT:
The forecast is looking better for Saturday afternoon and Sunday afternoon. Confidence is growing that this upper level storm will remain over the Great Lakes around Chicago keeping New Hampshire Motor Speedway mostly dry. (For those thinking Chicago should have been this weekend, it looks like it would have been rain out again had it been) Despite other forecast going totally dry for Sunday afternoon, I am going to be cautious and say mostly dry but mention the small threat of an isolated light shower or drizzle. Overall, it looks like Saturday afternoon looks mostly dry for the Truck race and we look mostly dry for the Sprint Cup race and should get both of them in with out a reschedule. Saying that doesn’t mean there can’t be a few delays or red flags along the way. I think I am being more cautious after what played out last week at Chicagoland.

FORECAST UPDATE THURSDAY 9 PM EDT:
This remains a very difficult forecast. There is a cut off upper level low positioned over the Great Lakes. This continues to pump and funnel moisture from the south into the Northeast. This will keep cloudy skies around with showers through out the weekend. The wettest days appear to be Friday and Saturday for New Hampshire Motor Speedway, as a couple of disturbances will bring off and on rain showers.

As for Sunday, because of the uncertainty of where this upper level low will be I am going to keep scattered to isolated showers in the forecast. The trend is calling for drier conditions but I am not ready to say it will be an all dry forecast for Sunday. I also don’t think Sunday is a washout. If there were to be a shower they may be enough breaks that they could dry the track and keep racing. This forecast is not going to be easy but right now I am playing it safe and saying wet Friday and Saturday, with a possibility of scattered off and on showers Sunday.

FORECAST UPDATE WEDNESDAY 7 PM EDT:
Right now the forecast for New Hampshire Motor Speedway doesn’t look very promising. A upper low that has been stalled out over the northern Great lakes for most of the week will continue to slowly move east by the end of the week. This system has been funneling lots of Gulf moisture into the Northeast and Mid-Atlantic over the past several days.

By the weekend that upper level storm system will be right over the Northeast and New England and this will keep cloudy skies and a chance of off and on showers for the region. The bad news is it’s another weekend with a strong likelihood of showers. These upper level storms keep the atmosphere very unstable. The only good news I can find is that the rain should be very scattered in nature so this could provide windows to get the race started and maybe finished but at this point it is too tough to call. I don’t think this is a wash out but I will know more as the forecast becomes clearing in the coming days. If I was going to the race, I would make Monday plans just in case. This could go either way at this point. Stay tuned

Please follow me on Twitter @NASCAR_WXMAN for the latest Weather updates during the race.

Please follow me on Twitter @NASCAR_WXMAN for the latest Weather updates during the race.

Great looking weather is expected for New England this weekend as high pressure dominates the region. Temperatures will be warm and in some cases even hot. Highs Saturday should be in the upper 80s to near 90 and into the 90s on Sunday. With the exception of some morning valley fog there will be plenty of sunshine.

Loudon, NH

FRI Sept 17

SAT Sept 18

SUN Sept 19

Showers in the morning with sunshine in the afternoon

Mostly sunny skies

Partly sunny

High: 66

High: 70Low: 43

High: 71Low: 46

FORECAST DISCUSSION Thursday 2:00 PM EDT:

Showers will be around Friday morning. Depending on timing they may be around when truck practice starts but more than likely will be drying out towards mid to late morning. The rest of the weekend looks mainly dry.

The only thing I see that could be a problem might be a possible shower towards the end of the race. It is still not certain but felt it needed a mention.

Please follow me on Twitter @NASCAR_WXMAN for the latest Weather updates during the race.

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About NASCAR WX-MAN

I'm a certified broadcast meteorologist who has a strong passion for weather and also a love for NASCAR, here I can combined the two and provide accurate weather forecasts for NASCAR fans going to the race or to those just wanting to know what will happen as they prepare to watch it on TV. My forecast can be found here, on Twitter, Facebook and also through SBNation.comMy focus is on the three main touring series for NASCAR: Camping World Truck Series, Nationwide Series and Sprint Cup Series. If you are looking for a more specific location for a home track, please contact me and for a small fee I can easily prepare a weekend forecast for you. I am the chief Meteorologist for KMVT-TV in Twin Falls, ID. I have 10 years of broadcasting and forecasting experience. If you want to know more please visit my resume resume.